(information about AROC can be found at the footer of this page)

An Aeronautical Radio
Operators Certificate (AROC) is a requirment for those who will need to
transmit on an operational radio frequency and communicate ground-to-air whilst
undertaking RPAS operations within the aviation environment. Having an AROC is
recommended for those RPAS pilots who will be conducting operations in
controlled airspace or near non-towered aerodromes. Having an Aeronautical
Radio Operators Certificate allows you to use air band radio.

There are 3 online bundles which combine all of the 10 individual modules along with either AROC , or AROC and ReOC manuals.

(information about AROC can be found at the footer of this page)

An Aeronautical Radio
Operators Certificate (AROC) is a requirment for those who will need to
transmit on an operational radio frequency and communicate ground-to-air whilst
undertaking RPAS operations within the aviation environment. Having an AROC is
recommended for those RPAS pilots who will be conducting operations in
controlled airspace or near non-towered aerodromes. Having an Aeronautical
Radio Operators Certificate allows you to use air band radio.